Superman Onesie

£44.99

  • Made from: flannel, offering a soft, warm texture
  • Style: blue body with the red and yellow S emblem on the chest, red cape and hood, yellow belt detail
  • Comfort: roomy fit, cosy hood, long elasticated sleeves
  • Versatility: ideal for cozying up at home or for cosplay events
  • Washing: machine washable without losing its softness or colours
  • Ultra-soft fabric | Warm and comfortable
  • Pyjamas and costume | Two in one
  • Any occasion | Bedtime, parties, film nights
  • Gift-ready | One they’ll actually wear
In stock, dispatched within 1-2 working days
Size Chart

30% OFF ACCESSORIES

Complete your look

Superman Onesie

Superman Onesie

£44.99

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  • Made from: flannel, offering a soft, warm texture
  • Style: blue body with the red and yellow S emblem on the chest, red cape and hood, yellow belt detail
  • Comfort: roomy fit, cosy hood, long elasticated sleeves
  • Versatility: ideal for cozying up at home or for cosplay events
  • Washing: machine washable without losing its softness or colours

A flight to Krypton in full comfort in a Women’s Superman Onesie

The Superman onesie for adults is not just nightwear. It delivers total comfort while paying tribute to heroism. Slipped on in seconds, this one-piece pyjama set instantly puts you in the world of Clark Kent, where justice and protection rule.

Designed to capture the spirit of Krypton, this one-piece turns your cosy moments into a statement of strength and confidence. It proudly sports Superman’s colours, from deep blue to bright red, recalling his exploits and iconic aura. The soft, plush flannel fabric guarantees unmatched warmth and comfort for long hours under the covers on the coldest nights.

Men’s Superman Onesie to embody justice like Clark Kent

Our adult Superman onesie is built for more than sleep. Its long elasticated sleeves and cosy hood keep you nice and warm. This one-piece evokes the superhero’s power and sense of justice. The bright colours and the famous S emblem on the chest pay tribute to Superman’s legacy, a symbol of hope and protection.

Its roomy fit ensures total freedom of movement for comfortable evenings without any restriction. It is the ideal buy for anyone who wants to combine comfort, style and passion. Slip on this one-piece and embody the famous superhero, even in the middle of your cosy nights in.

Join the superhero world as a family

Young fans can join in with the kids Superman onesie, cut in the same style for children. The Batman onesie shares the same playful spirit and works well for group outfits. Finally, the adult onesies collection covers every other design for grown-ups.

Frequently Asked Questions

They’re made to keep you warm on the sofa through autumn and winter, so yes, they’re cosy. The relaxed fit lets air move around, though, so you won’t get that stuffy feeling you get from tight pyjamas.
Machine wash at 30°C on a gentle cycle. Turn them inside out and pop them in a mesh laundry bag to protect the hood. Skip the tumble dryer and the iron. They air-dry quickly and fluff right back up on their own.
Yes, every onesie we sell is unisex. The roomy cut works for men and women alike, our kids’ styles fit girls and boys just the same, and our baby sizes are cut the same way for everyone. Just check the size chart to find your fit.
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Adult size chart (measurements in cm)

SIZEHEIGHTCHESTSHOULDER WIDTHSLEEVE LENGTHONESIE LENGTH (EXCLUDING HOOD)
S144 - 1531164650127 - 130
M154 - 1631204853137 - 140
L164 - 1731245056147 - 150
XL174 - 1831285259157 - 160